update README

README

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+0. Choose a Subnet/Hostname
+  ex: eve/172.23.75.2/32
+1. Install tinc-pre
+2. Clone hosts
+  $ mkdir /etc/tinc/evenet
+  $ chown $USER /etc/tinc/evenet
+  $ git clone gitlab@git.higgsboson.tk:Mic92/evenet.git /etc/tinc/evenet
+3. Start tinc interactive mode
+  $ tinc -c /etc/tinc/evenet
+  tinc> init <HOST>
+  tinc> set Subnet <HOST>
+  tinc> set Mode switch
+  tinc> set Hostnames yes
+  tinc> set Port 666 # optional, wenn anderer Port gewünscht
+  tinc> add ConnectTo=eve
+  tinc> add ConnectTo=ohorn
+  tinc> exit
+4. Adapt tinc-up/tinc-down
+$ cp tinc-up-linux tinc-up # replace linux with your os
+$ sed -i 's/%IP%/<HOST>/g' tinc-up
+
+Linux iproute2
+$ ip addr add address/prefixlength dev interface
+
+Linux/Freebsd/OpenBSD/NetBSD/Solaris/MacOS X
+$ ifconfig interface address netmask netmask
+
+Windows
+$ netsh interface ip set address interface static address netmask